| 浅析频率选择性信道中的微分空时编码 |
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| 引用本文： | 张珽. 浅析频率选择性信道中的微分空时编码[J]. 无线通信技术, 2010, 19(2) |
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| 作者姓名： | 张珽 |
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| 作者单位： | 西北政法大学信息网络中心,西安,710063 |
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| 摘 要： | 本文介绍了两种空-时传输机制,通过在频率选择性衰落信道上使用两根传输天线,来得到全速率和全分集非相干性.第一种机制结合了频域的OFDM微分空-时分组编码;第二种机制采用微分反时空-时分组编码,这样可以保证在不需要当前过采样或多根接收天线的情况下保证盲信道估计.
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| 关 键 词： | 盲估计 微分空时编码 衰落信道 码间干扰 多天线编码 |
Discussion on Differential Space-Time Coding in Frequency-Selective Channels |
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| ZHANG Ting. Discussion on Differential Space-Time Coding in Frequency-Selective Channels[J]. Wireless Communication Technology, 2010, 19(2) |
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| Authors: | ZHANG Ting |
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| Affiliation: | ZHANG Ting (Network Information Center,Nothwest University of Politics & Law,Xi'an 710063,China) |
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| Abstract: | This paper introduces two space-time transmission schemes which allow full-rate and full-diversity noncoherent communications using two transmit antennas over fading frequency-selective channels.The first scheme operates in the frequency domain where it combines differential Alamouti space-time block-coding(STBC) with OFDM.The second scheme operates in the time domain and employs differential time-reversal STBC to guarantee blind channel identifiability without the need for temporal oversampling or multiple... |
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| Keywords: | blind identification differential space-time coding fading channels intersymbol interference multiple antenna coding |
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